Spa skimmer



FIG. 1 is a front-top-right perspective view of a spa skimmer showing my new design;

FIG. 2 is a front-bottom-right perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a detail view taken from area 8 of FIG. 3 .

The broken lines in the figures illustrate portions of the spa skimmer that form no part of the claimed design. 

CLAIM The ornamental design for a spa skimmer, as shown and described. 